Hi On Wed, Oct 30, 2013 at 9:11 PM, Wolfgang Denk <w...@denx.de> wrote: > Dear Michael Trimarchi, > > In message > <CAOf5uw=hckwpaqogco3kvm1erhs-dvc5brt4usu3uqkettt...@mail.gmail.com> you > wrote: >> >> > This does not answer Stefano's question: why do it in SPL, what's >> > wrong with loading the real U-Boot for this purpose? >> >> Because it's not possible, internal memory size of some cpus. You need >> to have a way to load the second stage and I'm discussing a general >> way to do. > > I'm not sure that there are many use cases where you have sufficient > room for all that is needed for DFU (including I/O buffers); and if > you move to RAM early, you have other options as well. >
No because you need anyway to have a way to load it and dfu is a way. >> What is your alternative way? > > Depending on your hardware there is a zillion ways to do this. For > low to medium volumes good old JTAG is still a very powerful tool; for > high volumes you will probably just fit pre-programmed NAND on your > board. And of course there is the growing number of systems that can > just boot and install from a SDCard or USB MSD. > I accept the lesson even I don't thing that I need a lesson on it. We are talking that we have only otg. BTW Forget about it. > Best regards, > > Wolfgang Denk Michael > > -- > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de > But the only way of discovering the limits of the possible is to > venture a little way past them into the impossible. > - _Profiles of the Future_ (1962; rev. 1973) > ``Hazards of Prophecy: The Failure of Imagination'' _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
